Automatic tkaih-stop



G. B. GARRISON.

AUTOMATIC TRAIN STOP.

APPLICATION FILED MAY14,1915.

I 1,193,775. Patented Aug. 8, 1916.

2 SHEETSSHEET 1.

e. B. GARRISON.

AUTOMATIC TRAIN STOP.

APPLICATION F[LED MAY 14, 1915.

Patented Aug. 8, 1916.

2 SHEETS-SHEET 2.

GREEN 3. GARBISON, OF THAYEB, MISSOURI.

AUTOMATIC TRAIN-STOP.

To all whom it may concern:

Be it known that I, GREEN B. GARRISON, a citizen of the United States, residing at Thayer, in the county of Oregon and State of Missouri, have invented certain new. and useful Improvementsin Automatic Train- Stops, of which the following is a specification.

invention relates to railway train stops.

The primary object of my invention is to provide an automatic train stop which is adapted to shut off the prime mover of a railway train, apply the air brakes and deliver sand to the rails. 7

Another object of'my invention is to provide a device of the character above described which is simple in construction, cheap to manufacture, strong and durable, and sure and effective in operation. lVith the above and other objects in view my invention resides preferably in the construction, combination, and arrangement of parts as hereinafter set forth in the specification and illustrated in the accompanying drawings, in which- Figure 1 is a rear elevation of a locomotive engine showing my invention associated therewith. Fig. 2 is a side elevation of my invention showing the same during the course of operation, a locomotive engine being shown in dotted lines. Fig. 3 is a fragmentary perspective view of the parts of my inventlon detached from a" locomotive.

Similar reference characters indicate similar parts throughout the various views of the drawings.

Referring more particularly to the drawings in which the preferred embodiment of my invention is illustrated, I have designated a locomotive, in this instance of the steam type, by the numeral 1, the cab thereof being designated 2 in which the operating mechanism of my inventionv is mounted. The locomotive has been indicated in dotted lines in Fig. 2.

My invention includes two component parts, namely, a member adjacent the track and a member carried by the locomotive adapted for actuatipn by said trackway member.

The throttle lever is designated 3, the air valve handle 4., and the operating lever for Specificatlo Lers Patent.

Patented Aug. 8, 1916.

the sand supply 5. The throttle lever 3 and a r brake handle 4 are in the usual positlons, the position of the sand delivering member 5 being slightly removed'from the usual position.

The operating member for the air valve, throttle lever, and sand supply comprises a bar 6 pivoted as at 7 in a plate 8 carried by and rigidly secured at 9 to the roof of the cab 2. The upper free extremity of the bar 6 is bent at substantially right angles to provide a laterally extending arm 10 having a grooved roller 11 on the free extremity thereof. The bar 6 is bent rearwardly at a slight angle as indicated at 12 for a purpose which will hereinafter appear. The bar 6 is provided with a transverse aperture 13 above the point 12 in which may be secured one extremity of a retractile spring 14. which is secured at'the point 15 to the cab 2, as shown to advantage in Fig. 2.

The main body portion of the bar 6 forms the throttle closing member and is provided adjacent its lower free extremity with a awl member 16, said pawl member being pivoted at 17 to the bar 6. The pawl 16 is provided with a laterally extending curved lug 18 adapted for engagement normally with the handle grip 19 of the throttle lever 20.

The air brake operating member includes a lever 21 pivoted at 22 in a bracket 23 carried by one of the walls of the cab 2, the particular mounting of the bracket 23 not materially affecting the invention, I desiring to reserve the right to mount said bracket in any convenient manner. The lower free extremity of the lever 21 is beveled as at 24: and is normally slightly in advance of the handle 4 of the engineers air brake valve. The upper free extremity of the lever 21 is connected by a link 25 to the bar 6 at a point below the pivot 7 thereof. The link 25 as shown comprises a strip of metal having the opposite extremities bent laterally of the body portion thereof in opposite directions for engagement with the bar 6 and the lever 21. However, this construction may be modified in. any desired manner when reducing the invention to practice. It will be noted that a plurality of apertures 26 are provided in the bar 6 to facilitate adjustment of the link 25.

I have provided means on the bar 6 for supplying sand to the rails when making a stop, this means including an arm 27, one extremity of which is riveted or otherwise secured at 28 to the bar 6 and the other extremity of which is spaced from the bar 6 and disposed adjacent the sand feed controlling arm or lever 5.

Any suitable means may be provided adjacent the railway track and above the locomotive 1 for operating the bar 6 but I prefer to use the form of actuating or track member illustrated in the drawings and described hereinafter. It will be apparent to those skilled in the'art that while the bar or lever 6 is operable from above the cab 2 this position of operation may be changed at will.

The track member which I provide ineludes a plurality of supports 29 and 30 mounted adjacent the track and having the upper extremities thereof curved to provide supporting brackets 31 and 32, respectively. trolley wire or ramp element 33 extends between the track portions 31 and 32 and is connected thereto by yieldable connectors 34 which, in the present instance comprise coil springs. The supports 29 and 30 are preferably of different lengths and assuming the direction of travel to be as shown in Fig. 2 the support 29 is slightly greater in length than the support 30, so that a slight incline .is given to the ramp member 33. The ramp member 33, by virtue of its peculiar supporting means, is disposed in the pathof travel of the-roller 11 when carried by a locomotive, so that when the roller engages the ramp member 33 it will be depressed causing the lever 6 to be moved through the arc of a circle. Attention is called to the fact that any suitable means may be provided for removing the ramp member 33 into and out of position, the brackets 31 and 32 preferably being rotatably mounted in the supports 29 and 30 so that operating means may be connected therewith to swing the ramp member 33 out of the path of travel to prevent stopping a train.

In operation theroller 11 will, by virtue of the inclination of the ramp member 33, be depressed causing the lever 6 to move through the arc of a circle. The pawl 16 is normally in engagement with the throttle lever 20 and when the lever 6 is moved as described the pawl will fall into alinement by adjusting the link 25 so as to cause the handle 4 to be thrown into the emergency stop position. The arm 27 is adapted to, at the time the lever 21 applies the air, engage the sand lever 5 causing a supply of sand to be delivered to the rails, such as is the usual practice in efi'ecting the stop of a railway train on slippery rails.-

It will be noted that by increasing or decreasing the angle of inclination of the ramp 33 an emergency or service stop may roller 11 will be depressed in different lengths of time when the angle of inclination of the ramp member 33 is changed.

steam locomotive, it being a well known factthat the sand and air operating means are similar to those of the steam locomotive.

While I have shown and described my invention as possessing a peculiar form and construction, it is desired that it be understood that I may make such changes in the details thereof that do not depart from the spirit and scope of the invention as claimed.

I Having thus described my invention what Iclaim and desire to'secure by Letters Patent is:

1. In a train stop, the combination with a railway track and a vehicle movable thereon, of an elevated inclined track member, a lever pivoted on thevehicle, said lever having connection with the control apparatus of thevehicle and adapted to engage the track member at times to gradually operate said control apparatus to obtain a service stop.

2. A train stop, including, in combination with a railway track and a vehicle movablethereon, a track ramp, a lever on the vehicle engageable with said track ramp, throttle closing means carried by the lever, means controlled by the lever for operating the engineers valve, said track ramp being slightly inclined throughout its length to slowly operate the throttle and air valve to obtain a service stop.

3. In an automatic train stop, the combe obtained. This is due to the fact that the bination with a railway track and a vehicle movable thereon, a yieldable track ramp disposed in parallelism to the path of travel of the vehicle and slightly inclined throughout its length, a lever pivoted on the vehicle engageable with the track ramp, a pawl member carried by the lever, a rigid arm carried by said lever, and a second lever pivoted for actuation by said first mentioned lever, as and for the purpose set lever for engagement with the throttle le- 10 ver, an arm associated therewith for operating the air-valve and sand supply.

n testimony whereof I aflix my signature in presence of two witnesses.

GREEN B. GARRISON. Witnesses W. BL Bnrrron, HENRY SKAGGS. 

